I have EJB (stateful session) deployment in my JBoss server, which proxies data 
access via hibernate. So session management is on server side. Bean is used for 
accessing data from GUI client. 

How I can use lazy fetching in this configuration? Or how I can change 
configuration to use it?

When I try not to write default-lazy="false" in my mappings, on first access to 
my entities I have exception because of closed (not available) session. As 
quick-fix, I using local session for fetching data, and bean for manipulating 
data. But it's wrong, of course...

And I can't avoid using lazy fetching - too big data massives are to fetch from 
database otherwise.

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